I've been using the Hydro 5 razor for about 18 months now, I have tried the equivalent Gillette Fusion razor which is also good but I prefer this product myself. I find the shave more effective with the Wilkinson sword.
It's not unrealistic to get 4/5 weeks out of a single blade (for me moderate beard growth sometimes a bit longer) The hydro 5 gives a good shave and I've been very pleased with this since using it. The hydro shaving foam which I sometimes use (it's again more expensive) is also a good match for this it really does help to reduce that dry skin feeling after a shave, but I use other shaving foams as well. If you're looking for a decent budget shaving foam I'd suggest trying Aldi's one it's actually quite good and effectively softens the hair prior to shaving and costs very little. (Aldi's razors are not great though)
I can recommend this having used it for some time, but appreciate everyone is unique and might get on better with alternatives. Prior to this I used an electric shaver, then I went on to use the not bad Lidl twin blade razors. Whilst the Lidl razor was quite good for a cheap alternative (and avoiding those nasty single blade bic type razors), as the Hydro 5 blades last a lot longer (I got about a week out of a twin blade Lidl) it's probably false economy going for the budget low blade shaving options. (ie you get more blade but they don't last as long)
The blades are also a bit chaper than the Gillette ones so another plus to Wilkinson Sword here